For a chi-square test of homogeneity for this contingency table, what are the observed frequencies for the first row?

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For a chi-square test of homogeneity for this contingency table, what are the observed frequencies for the first row?

A clinic administers two drugs to two groups of randomly assigned patients to cure the same disease: 70 patients received Drug I and 8ea patients received Drug II. The following table gives the information about the numbers of patients cured and those not cured by each of these two drugs.

Drug	Cured	Not Cured
I	60	10
II	59	21

For a chi-square test of homogeneity for this contingency table, what are the observed frequencies for the first row?

math Statistics-And-Probability

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Answer 1

Answer #1

We need to state the observed frequencies of the first row which is directly given in the contingency table.

So,

Observed frequency for first row will be:

Observed frequency for cured from Drug I (Row 1, Column 1) = 60

Observed frequency for not cured from Drug I (Row 1, Column 2) = 10

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Answer 2

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For a chi-square test of homogeneity for this contingency table, what are the observed frequencies for the first row?

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For a chi-square test of homogeneity for this contingency table, what are the observed frequencies for the second column?

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For a chi-square test of homogeneity for this contingency table, what are the expected frequencies for the second column, rounded to two decimal places?

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For a chi-square test of homogeneity for this contingency table, what are the observed frequencies for the first row?

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